MM-59404 Stop automatically dismissing desktop notifications (#27627)

webapp/channels/src/utils/constants.tsx

@@ -2046,7 +2046,6 @@ export const Constants = {
     MENTION_RECENT_CHANNELS: 'mention.recent.channels',
     MENTION_SPECIAL: 'mention.special',
     MENTION_GROUPS: 'search.group',
-    DEFAULT_NOTIFICATION_DURATION: 5000,
     STATUS_INTERVAL: 60000,
     AUTOCOMPLETE_TIMEOUT: 100,
     AUTOCOMPLETE_SPLIT_CHARACTERS: ['.', '-', '_'],

webapp/channels/src/utils/notifications.ts

@@ -5,7 +5,6 @@ import type {ThunkActionFunc} from 'mattermost-redux/types/actions';
 
 import icon50 from 'images/icon50x50.png';
 import iconWS from 'images/icon_WS.png';
-import Constants from 'utils/constants';
 import * as UserAgent from 'utils/user_agent';
 
 export type NotificationResult = {
@@ -20,8 +19,7 @@ let requestedNotificationPermission = Boolean('Notification' in window && Notifi
 //
 // If successful in showing a notification, it resolves with a callback to manually close the
 // notification. If no error occurred but the user did not grant permission to show notifications, it
-// resolves with a no-op callback. Notifications that do not require interaction will be closed automatically after
+// resolves with a no-op callback. Not all platforms support all features, and may
-// the Constants.DEFAULT_NOTIFICATION_DURATION. Not all platforms support all features, and may
 // choose different semantics for the notifications.
 
 export interface ShowNotificationParams {
@@ -98,13 +96,6 @@ export function showNotification(
             throw new Error('Notification failed to show.');
         };
 
-        // Mac desktop app notification dismissal is handled by the OS
-        if (!requireInteraction && !UserAgent.isMacApp()) {
-            setTimeout(() => {
-                notification.close();
-            }, Constants.DEFAULT_NOTIFICATION_DURATION);
-        }
-
         return {
             status: 'success',
             callback: () => {